YouTuber ContraPoints explains how the far right came to dominate political discussion on YouTube.

Historian William R. Black explains how Confederate general Nathan Bedford Forrest came to replace Robert E. Lee as an icon of white dominance in the Neo-Confederate movement. Plus: Alternate histories of the South.

Philosopher Stephen Asma, author of the new book The Evolution of Imagination, says that advocates of “effective altruism” should consider how imagination aids moral development. Plus: What came before consciousness?